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authorSimon Budig <simon@budig.de>2007-01-15 17:28:47 +0100
committerJiri Kosina <jkosina@suse.cz>2007-01-21 22:17:53 +0100
commitd4ae650a904612ffb7edd3f28b69b022988d2466 (patch)
tree77e2eb83d78f5102182858bf6016481cc1d799dc
parent641266fdaa3c137c632f8ad2e4124248bafe7a98 (diff)
HID: proper LED-mapping for SpaceNavigator
This change introduces a mapping for LED indicators between the HID specification and the Linux input subsystem. The previous code properly mapped the LEDs relevant for Keyboards, but garbeled the remaining ones. With this change all LED enums from the input system get mapped to more or less equivalent LED numbers from the HID specification. This patch also ensures that the unused bits in a HID report to the device are zeroed out. This makes the 3Dconnexion SpaceNavigator fully usable with the linux input system. Signed-off-by: Simon Budig <simon@budig.de> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
-rw-r--r--drivers/hid/hid-core.c4
-rw-r--r--drivers/hid/hid-input.c19
2 files changed, 20 insertions, 3 deletions
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index 1e1a7770a6b..38db8321b21 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -880,6 +880,10 @@ static void hid_output_field(struct hid_field *field, __u8 *data)
unsigned size = field->report_size;
unsigned n;
+ /* make sure the unused bits in the last byte are zeros */
+ if (count > 0 && size > 0)
+ data[(count*size-1)/8] = 0;
+
for (n = 0; n < count; n++) {
if (field->logical_minimum < 0) /* signed values */
implement(data, offset + n * size, size, s32ton(field->value[n], size));
diff --git a/drivers/hid/hid-input.c b/drivers/hid/hid-input.c
index 28689e3eb55..95b9573c5f9 100644
--- a/drivers/hid/hid-input.c
+++ b/drivers/hid/hid-input.c
@@ -364,9 +364,22 @@ static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_fiel
break;
case HID_UP_LED:
- if (((usage->hid - 1) & 0xffff) >= LED_MAX)
- goto ignore;
- map_led((usage->hid - 1) & 0xffff);
+
+ switch (usage->hid & 0xffff) { /* HID-Value: */
+ case 0x01: map_led (LED_NUML); break; /* "Num Lock" */
+ case 0x02: map_led (LED_CAPSL); break; /* "Caps Lock" */
+ case 0x03: map_led (LED_SCROLLL); break; /* "Scroll Lock" */
+ case 0x04: map_led (LED_COMPOSE); break; /* "Compose" */
+ case 0x05: map_led (LED_KANA); break; /* "Kana" */
+ case 0x27: map_led (LED_SLEEP); break; /* "Stand-By" */
+ case 0x4c: map_led (LED_SUSPEND); break; /* "System Suspend" */
+ case 0x09: map_led (LED_MUTE); break; /* "Mute" */
+ case 0x4b: map_led (LED_MISC); break; /* "Generic Indicator" */
+ case 0x19: map_led (LED_MAIL); break; /* "Message Waiting" */
+ case 0x4d: map_led (LED_CHARGING); break; /* "External Power Connected" */
+
+ default: goto ignore;
+ }
break;
case HID_UP_DIGITIZER: